Portable air cleaner



FIG. 1 is a perspective view of a portable air cleaner showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawing views are included for the purpose of illustrating the unclaimed portions of the portable air cleaner and form no part of the claimed design. 

CLAIM The ornamental design for a portable air cleaner, as shown and described. 